prob an out there idea...run cabergolin for 6mo cycle dosing 2x/week. will remove any prolactin in your system. prolactin is the hormone released after an orgasm preventing another
erection until you recover. Removing prolactin allows you to have multiple orgasms (it worked for me, cept after round 2 i was so tired i couldnt go for 3)
note though, there is some ancedotal evidence that the prolactin release after an orgasm promotes new brain cell formation so....
see
Cabergoline (Dostinex) Profile for more info